3aefca32b0
This commit was SVN r29971. The following SVN revision numbers were found above: r29931 --> open-mpi/ompi@0995a6f3b9
262 строки
12 KiB
C
262 строки
12 KiB
C
/*
|
|
* Copyright (c) 2012 Los Alamos National Security, LLC. All rights reserved.
|
|
* Copyright (c) 2013 Mellanox Technologies, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*/
|
|
|
|
/* This is the public RTE interface to the OMPI layer. Any RTE can be
|
|
* connected to the OMPI layer by creating a new static component in
|
|
* this framework, assigning it a priority and including a configure.m4
|
|
* to define when it should be built.
|
|
*
|
|
* Each component must provide a number of types and functions that mimic
|
|
* those provided by ORTE. These include (where flexibility exists, the
|
|
* ORTE data type is shown, but any compatible type is allowed. For example,
|
|
* the jobid field in ompi_process_name_t could be any type of integer, but
|
|
* cannot be a string):
|
|
*
|
|
* (a) Process name objects and operations
|
|
* 1. Definitions for integral types ompi_jobid_t and ompi_vpid_t.
|
|
* The jobid must be unique for a given MPI_COMM_WORLD capable of
|
|
* connecting to another OMPI_COMM_WORLD and the vpid will be the
|
|
* process's rank in MPI_COMM_WORLD.
|
|
* 2. ompi_process_name_t - a struct that must contain at least two integer-typed fields:
|
|
* a. ompi_jobid_t jobid
|
|
* b. ompi_vpid_t vpid
|
|
* Note that the structure can contain any number of fields beyond these
|
|
* two, so the process name struct for any particular RTE can be whatever
|
|
* is desired.
|
|
* 3. OMPI_NAME_PRINT - a macro that prints a process name when given
|
|
* a pointer to ompi_process_name_t. The output format is to be
|
|
* a single string representing the name. This function should
|
|
* be thread-safe for multiple threads to call simultaneously.
|
|
* 4. OMPI_PROC_MY_NAME - a pointer to a global variable containing
|
|
* the ompi_process_name_t for this process. Typically, this is
|
|
* stored as a field in the ompi_process_info_t struct, but that
|
|
* is not a requirement.
|
|
* 5. OMPI_NAME_WIlDCARD - a wildcard name.
|
|
* 6. ompi_rte_compare_name_fields - a function used to compare fields
|
|
* in the ompi_process_name_t struct. The function prototype must be
|
|
* of the form:
|
|
* int ompi_rte_compare_name_fields(ompi_rte_cmp_bitmask_t mask,
|
|
* ompi_process_name_t *name1,
|
|
* ompi_process_name_t *name2);
|
|
* The bitmask must be defined to indicate the fields to be used
|
|
* in the comparison. Fields not included in the mask must be ignored.
|
|
* Supported bitmask values must include:
|
|
* b. OMPI_RTE_CMP_JOBID
|
|
* c. OMPI_RTE_CMP_VPID
|
|
* d. OMPI_RTE_CMP_ALL
|
|
* 7. uint64_t ompi_rte_hash_name(name) - return a string hash uniquely
|
|
* representing the ompi_process_name passed in.
|
|
* 8. OMPI_NAME - an Opal DSS constant for a handler already registered
|
|
* to serialize/deserialize an ompi_process_name_t structure.
|
|
*
|
|
* (b) Collective objects and operations
|
|
* 1. ompi_rte_collective_t - an OPAL object used during RTE collective operations
|
|
* such as modex and barrier. It must be an opal_list_item_t and contain the
|
|
* following fields:
|
|
* a. id (ORTE type: int32_t)
|
|
* b. bool active
|
|
* flag that user can poll on to know when collective
|
|
* has completed - set to false just prior to
|
|
* calling user callback function, if provided
|
|
* 2. ompi_rte_modex - a function that performs an exchange of endpoint information
|
|
* to wireup the MPI transports. The function prototype must be of the form:
|
|
* int ompi_rte_modex(ompi_rte_collective_t *coll);
|
|
* At the completion of the modex operation, the coll->active flag must be set
|
|
* to false, and the endpoint information must be stored in the modex database.
|
|
* This function must have barrier semantics across the MPI_COMM_WORLD of the
|
|
* calling process.
|
|
* 3. ompi_rte_barrier - a function that performs a barrier operation within the
|
|
* RTE. The function prototype must be of the form:
|
|
* int ompi_rte_barrier(ompi_rte_collective_t *coll);
|
|
* At the completion of the barrier operation, the coll->active flag must be set
|
|
* to false
|
|
*
|
|
* (c) Process info struct
|
|
* 1. ompi_process_info_t - a struct containing info about the current process.
|
|
* The struct must contain at least the following fields:
|
|
* a. app_num -
|
|
* b. pid - this process's pid. Should be same as getpid().
|
|
* c. num_procs - Number of processes in this job (ie, MCW)
|
|
* d. my_node_rank - relative rank on local node to other peers this run-time
|
|
* instance knows about. If doing dynamics, this may be something
|
|
* different than my_local_rank, but will be my_local_rank in a
|
|
* static job.
|
|
* d. my_local_rank - relative rank on local node with other peers in this job (ie, MCW)
|
|
* e. num_local_peers - Number of local peers (peers in MCW on your node)
|
|
* f. my_hnp_uri -
|
|
* g. peer_modex - a collective id for the modex operation
|
|
* h. peer_init_barrier - a collective id for the barrier during MPI_Init
|
|
* i. peer_fini_barrier - a collective id for the barrier during MPI_Finalize
|
|
* j. job_session_dir -
|
|
* k. proc_session_dir -
|
|
* l. nodename - a string representation for the name of the node this
|
|
* process is on
|
|
* m. cpuset -
|
|
* 2. ompi_process_info - a global instance of the ompi_process_t structure.
|
|
* 3. ompi_rte_proc_is_bound - global boolean that will be true if the runtime bound
|
|
* the process to a particular core or set of cores and is false otherwise.
|
|
*
|
|
* (d) Error handling objects and operations
|
|
* 1. void ompi_rte_abort(int err_code, char *fmt, ...) - Abort the current
|
|
* process with the specified error code and message.
|
|
* 2. int ompi_rte_abort_peers(ompi_process_name_t *procs, size_t nprocs) -
|
|
* Abort the specified list of peers
|
|
* 3. OMPI_ERROR_LOG(rc) - print error message regarding the given return code
|
|
* 4. ompi_rte_register_errhandler - register a callback function for the RTE
|
|
* to report asynchronous errors to the caller
|
|
*
|
|
* (e) Init and finalize objects and operations
|
|
* 1. ompi_rte_init - a function to initialize the RTE. The function
|
|
* prototype must be of the form:
|
|
* int ompi_rte_init(int *argc, char ***argv);
|
|
* 2. ompi_rte_finalize - a function to finalize the RTE. The function
|
|
* prototype must be of the form:
|
|
* int ompi_rte_finalize(void);
|
|
* 3. void ompi_rte_wait_for_debugger(void) - Called during MPI_Init, this
|
|
* function is used to wait for debuggers to do their pre-MPI attach.
|
|
* If there is no attached debugger, this function will not block.
|
|
*
|
|
* (f) Database operations
|
|
* 1. ompi_rte_db_store - a function to store modex and other data in
|
|
* a local database. The function is primarily used for storing modex
|
|
* data, but can be used for general purposes. The prototype must be
|
|
* of the form:
|
|
* int ompi_rte_db_store(const ompi_process_name_t *proc,
|
|
* const char *key, const void *data,
|
|
* opal_data_type_t type);
|
|
* The implementation of this function must store a COPY of the data
|
|
* provided - the data is NOT guaranteed to be valid after return
|
|
* from the call.
|
|
* 3. ompi_rte_db_fetch -
|
|
* NOTE: Fetch accepts an 'ompi_proc_t'.
|
|
* int ompi_rte_db_fetch(const struct ompi_proc_t *proc,
|
|
* const char *key,
|
|
* void **data,
|
|
* opal_data_type_t type);
|
|
* 4. ompi_rte_db_fetch_pointer -
|
|
* NOTE: Fetch accepts an 'ompi_proc_t'.
|
|
* int ompi_rte_db_fetch_pointer(const struct ompi_proc_t *proc,
|
|
* const char *key,
|
|
* void **data,
|
|
* opal_data_type_t type);
|
|
* 5. Pre-defined db keys (with associated values after rte_init)
|
|
* a. OMPI_DB_HOSTNAME
|
|
* b. OMPI_DB_LOCALITY
|
|
*
|
|
* (g) Communication support
|
|
*
|
|
*/
|
|
|
|
#ifndef OMPI_MCA_RTE_H
|
|
#define OMPI_MCA_RTE_H
|
|
|
|
#include "ompi_config.h"
|
|
|
|
#include "opal/dss/dss_types.h"
|
|
#include "opal/mca/mca.h"
|
|
#include "opal/mca/base/base.h"
|
|
|
|
BEGIN_C_DECLS
|
|
|
|
/**
|
|
* Structure for rte components.
|
|
*/
|
|
struct ompi_rte_base_component_1_0_0_t {
|
|
/** MCA base component */
|
|
mca_base_component_t base_version;
|
|
/** MCA base data */
|
|
mca_base_component_data_t base_data;
|
|
};
|
|
|
|
/**
|
|
* Convenience typedef
|
|
*/
|
|
typedef struct ompi_rte_base_component_1_0_0_t ompi_rte_base_component_1_0_0_t;
|
|
typedef struct ompi_rte_base_component_1_0_0_t ompi_rte_component_t;
|
|
|
|
/**
|
|
* Macro for use in components that are of type rte
|
|
*/
|
|
#define OMPI_RTE_BASE_VERSION_1_0_0 \
|
|
MCA_BASE_VERSION_2_0_0, \
|
|
"rte", 2, 0, 0
|
|
|
|
END_C_DECLS
|
|
|
|
/* include implementation to call */
|
|
#include MCA_rte_IMPLEMENTATION_HEADER
|
|
|
|
BEGIN_C_DECLS
|
|
|
|
/* Each RTE is required to define a DB key for identifying the node
|
|
* upon which a process resides, and for providing this information
|
|
* for each process
|
|
*
|
|
* #define OMPI_RTE_NODE_ID
|
|
*/
|
|
|
|
/* Communication tags */
|
|
#define OMPI_RML_TAG_UDAPL OMPI_RML_TAG_BASE+1
|
|
#define OMPI_RML_TAG_OPENIB OMPI_RML_TAG_BASE+2
|
|
#define OMPI_RML_TAG_XOPENIB OMPI_RML_TAG_BASE+3
|
|
#define OMPI_RML_TAG_COMM_CID_INTRA OMPI_RML_TAG_BASE+4
|
|
#define OMPI_RML_TAG_XOOB OMPI_RML_TAG_BASE+5
|
|
#define OMPI_RML_TAG_SM_BACK_FILE_CREATED OMPI_RML_TAG_BASE+6
|
|
#define OMPI_CRCP_COORD_BOOKMARK_TAG OMPI_RML_TAG_BASE+7
|
|
#define OMPI_COMM_JOIN_TAG OMPI_RML_TAG_BASE+8
|
|
|
|
/* support for shared memory collectives */
|
|
#define OMPI_RML_TAG_COLL_SM2_BACK_FILE_CREATED OMPI_RML_TAG_BASE+9
|
|
/* common sm component query result index */
|
|
#define OMPI_RML_TAG_COMMON_SM_COMP_INDEX OMPI_RML_TAG_BASE+10
|
|
|
|
/* OFACM RML TAGs */
|
|
#define OMPI_RML_TAG_OFACM OMPI_RML_TAG_BASE+11
|
|
#define OMPI_RML_TAG_XOFACM OMPI_RML_TAG_BASE+12
|
|
|
|
#define OMPI_RML_PCONNECT_TAG OMPI_RML_TAG_BASE+13
|
|
|
|
/* open shmem oob communication */
|
|
#define OMPI_RML_TAG_SHMEM OMPI_RML_TAG_BASE+14
|
|
|
|
#define OMPI_RML_TAG_DYNAMIC OMPI_RML_TAG_BASE+200
|
|
|
|
/*
|
|
* MCA Framework
|
|
*/
|
|
OMPI_DECLSPEC extern mca_base_framework_t ompi_rte_base_framework;
|
|
|
|
/* In a few places, we need to barrier until something happens
|
|
* that changes a flag to indicate we can release - e.g., waiting
|
|
* for a specific RTE message to arrive. We don't want to block MPI
|
|
* progress while waiting, so we loop over opal_progress, letting
|
|
* the RTE progress thread move the RTE along
|
|
*/
|
|
#define OMPI_WAIT_FOR_COMPLETION(flg) \
|
|
do { \
|
|
opal_output_verbose(1, ompi_rte_base_framework.framework_output, \
|
|
"%s waiting on RTE event at %s:%d", \
|
|
OMPI_NAME_PRINT(OMPI_PROC_MY_NAME), \
|
|
__FILE__, __LINE__); \
|
|
while ((flg)) { \
|
|
opal_progress(); \
|
|
} \
|
|
}while(0);
|
|
|
|
typedef struct {
|
|
opal_list_item_t super;
|
|
ompi_process_name_t name;
|
|
} ompi_namelist_t;
|
|
OBJ_CLASS_DECLARATION(ompi_namelist_t);
|
|
|
|
END_C_DECLS
|
|
|
|
#endif /* OMPI_RTE_H_ */
|